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Sonifex RB-SP1 Digital Splitter & Combiner

Digital Splitter

Sonifex RB-SP1 Digital Splitter & Combiner

Sonifex RB-SP1 Digital Splitter & Combiner

Digital Splitter

SKU: 19030

Cat no: 6033

  • 2 x XLR Inputs and outputs
  • Interface between signals
  • Compact Unit
  • Rack mountable
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Estimated Delivery 1 to 2 days

£399.00 (ex vat) £478.80 (incl vat)

The RB-SP1 Digital Splitter & Combiner is a 1U rack-mount unit used to interface various double sampling pieces of equipment. Some older equipment uses 2 AES/EBU connectors for double sampling with each connector carrying an audio signal at a normal frame rate, whilst other equipment has a single connector using twice the frame rate. The RB-SP1 can interface between them, either combining the signals from 2 XLR's into 1, or splitting the signal from 1 XLR into 2.
The RB-SP1 can also be used for interfacing stereo and mono signals to digital mixing desks by splitting the left and right signals of a stereo XLR to two separate XLRs, and vice versa by combining them.
Additionally, a sample rate converter on the second digital input can be used to synchronize or convert the sample rate of the secondary input to that of the primary input. The RB-SP1 can handle sample rates up to 96kHz and bit-rates of 16, 20 and 24 bit.
Both inputs and outputs can be selected as either AES/EBU or S/PDIF.
There are two types of operation : Split 96, and Stereo/Mono. These each have three different switch modes : Split, Combine and Bypass.
Split 96 - This is a method that allows older equipment to handle 48kHz double sampled (96kHz) digital signals. To do this, Split 96 uses two digital signals running at 48kHz, where both sub-frames of a single 48kHz stream are used to carry information about a mono signal, with the resultant signal of both 48kHz streams being equivalent to a stereo 96kHz signal. The unit will also perform the same function for 88.2kHz stereo and 44.1kHz double sampled signals.
In Split Mode a single stereo 96kHz signal is received into input 1 which is then output as two separate 48kHz signals.
In Combine Mode two 48kHz double sampled input signals are combined to create a single 96kHz signal on output 1.
Stereo/Mono - This allows a digital stereo signal to be separated into two digital mono signals and vice-versa.
In Split Mode a single stereo signal is routed to two mono outputs.
In Combine Mode two mono signals are combined to create a single stereo signal.

Product Specification

Input Impedance
110ohms +/-20% balanced (AES/EBU)
75ohms +/-5% unbalanced (S/PDIF)

Output Impedance
110ohms +/-20% balanced (AES/EBU)
75ohms +/-5% unbalanced (S/PDIF)

Signal Level
3V/10V peak to peak min/max (AES/EBU)
0.5V ±20% peak to peak (S/PDIF)

Sample Freq Range
30-100kHz (i.e. including 32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz and 96kHz)

Bit Depth Up to and including 24 bit

Sample Frequency Range
30-100kHz (i.e. including 32kHz, 44.1kHz, 48kHz, 64kHz, 88.2kHz and 96kHz)

Dynamic Range 120dB

Distortion and Noise
-114dB THD + N at 1kHz, ref 0dB FS Connections

Audio Inputs
2 x AES/EBU XLR 3 pin female (balanced)
2 x S/PDIF RCA phono female (unbalanced)
(Input button selects between AES/EBU and S/PDIF)

Audio Outputs
2 x AES/EBU XLR 3 pin male (balanced)
2 x S/PDIF RCA phono female (unbalanced)
(Output button selects between AES/EBU and S/PDIF)

Mains Input
Filtered IEC, continuously rated 85-264VAC @ 47-63Hz, 10W max

Physical Specification

Weight Nett: 1.6kg

Gross: 2.2kg

Dimensions Raw:
48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)

Boxed: 53cm (W) x 20.5cm (D) x 6cm (H)

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